How long is the audio and when you say cleaned up that means you want parts of it clean up or just the whole interview at once. What's the duration of the audio anyway? I use Ableton live 9 suite, and have got some brilliant EQ plugins with me. You can check this very similar work I completed on sound designing here--- https://www.freelancer.com/projects/sound-design/Voice-Isolated-background-sound-lowered.html --- and let me know. I'll be waiting, thanks